Phlebotomy Technician

Category - Procedures & Tubes

What is the Isostat system?
  1. The skin-cleansing technique used when collecting blood for cultures.
  2. A method for quickly drawing blood cultures.
  3. A collection system for blood cultures used when the patient has received antibiotic therapy.
  4. A collection system for blood cultures that allows quicker isolation of organisms.
Explanation
Answer: D - The Isostat system allows quicker isolation of organisms in blood, by using a lysis centrifuge method in the laboratory. The bottles contain an additive that lyses blood cells. After centrifuge, the sediment is directly applied to the culture media. The bottles need gentle turning to mix the blood with the additive. The collection bottles have a stopper that fits into a standard vacuum-holder, allowing collection of the blood directly into the bottle limiting the chance of contamination.
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